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Radiation effect on pellet implosion and Rayleigh-Taylor instability in light-ion beam inertial confinement fusion

Published online by Cambridge University Press:  09 March 2009

S. Kawata ,
T. Sato ,
T. Teramoto ,
E. Bandoh ,
Y. Masubichi  and
I. Takahashi
S. Kawata
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
T. Sato
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
T. Teramoto
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
E. Bandoh
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
Y. Masubichi
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
I. Takahashi
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940–21, Japan
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Abstract

The radiation transport effect on pellet implosion and the Rayleigh-Taylor (R-T) instability are studied in a light-ion beam (LIB) inertial confinement fusion (ICF) by numerical simulation and analytic work. First, we present the nonuniformity-smoothing effect of the radiation transport on implosion symmetry in an LIB ICF fuel pellet. The 2-D implosion simulation shows that the initial nonuniformity can be smoothed out well in an LIB ICF pellet; for example, the initial nonuniformity of 6% is smoothed to 0.07% during the implosion phase. In addition, linear analyses for the R-T instability under nonuniform acceleration in space and under radiation are also performed: The nonuniform acceleration field in space does not change the growth rate (γ) of the R-T instability. However, this nonuniformity may suppress the growth itself of the R-T instability. Radiation may reduc the growth rate (γ).

Type
Regular Papers
Information
Laser and Particle Beams , Volume 11 , Issue 4 , December 1993 , pp. 757 - 768
Copyright
Copyright © Cambridge University Press 1993

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References

REFERENCES

Abe, T. & Niu, K. 1981 Jpn. J. Appl. Phys. 20, 91.CrossRefGoogle Scholar
Atzeni, S. et al. 1986 Laser Particle Beams 4, 393.CrossRefGoogle Scholar
Baker, L. 1983 Phys. Fluids 26, 391.CrossRefGoogle Scholar
Bodner, S.E. 1974 Phys. Rev. Lett. 33, 761.CrossRefGoogle Scholar
Chandrasekhar, S. 1981 Hydrodynamic and Hydromagnetic Stability (Dover, New York), Chap. X.Google Scholar
Emery, M.H. et al. 1982 Phys. Rev. Lett. 48, 253.CrossRefGoogle Scholar
Fraley, G.S. et al. 1974 Phys. Fluids 17, 474.CrossRefGoogle Scholar
Frank, R.M. & Lazarus, R.B. 1964 Methods in Computational Physics, (Academic Press, New York), Vol. 3.Google Scholar
Kawata, S. & Niu, K. 1984 J. Phys. Soc. Jpn. 53, 3416.CrossRefGoogle Scholar
Kull, H.J. 1985 Phys. Rev. A 31, 540.CrossRefGoogle Scholar
Kull, H.J. & Anisimov, S.I. 1986 Phys. Fluids 29, 2067.CrossRefGoogle Scholar
Mark, J.W.-K. 1988 In Proceedings of the 7th International Conference on High-Power Particle Beams, Vol. 1, p. 785.Google Scholar
Munro, D.H. 1988 Phys. Rev. A 38, 1433.CrossRefGoogle Scholar
Tahir, N.A. et al. 1986 J. Appl. Phys. 60, 898.CrossRefGoogle Scholar
Takabe, H. & Mima, K. 1980 J. Phys. Soc. Jpn. 48, 1793.CrossRefGoogle Scholar
Takabe, H. et al. 1983 Phys. Fluids 26, 2299.CrossRefGoogle Scholar
Takabe, H. et al. 1985 Phys. Fluids 28, 3676.CrossRefGoogle Scholar
Troyon, F. & Gruber, R. 1971 Phys. Fluids 14, 2069.CrossRefGoogle Scholar
Zel'dovich, Y.B. & Raizer, Y.P. 1967 Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena (Academic Press, New York).Google Scholar